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One electronically tested platinum ladies cast tanzanite and diamond ring with a bright polish finish. Condition is new, good workmanship. The featured tanzanite is set within tiered diamond bezels supported by a lattice under gallery and stylized diamond set split shoulders, completed by a three millimeter wide band. Trademark is Orianne. Identified with markings of "PT950". Containing:
One prong set pear modified brilliant cut natural tanzanite, measuring 13.90 x 10.05 x 7.67mm, exact weight 6.97ct., clarity is eye clean, type I, dark, moderately strong, violetish blue color, (GIA vB 7/4), cut is good. Transmitting light with no distortion, transparent. GIA Gemological Report attached. Graded loose prior to setting in the GIA Laboratory, Report #1172388206.
Tanzanite is a very rare gemstone that is only found in the country of Tanzania. Originally discovered in 1967. Tiffany & Company, named the stone Tanzanite. It is found in the Usumburu Mountains that border the Umba Valley of northern Tanzania. Tanzanite occurs in gray, brown, violet, blue, reddish-purple, & green. The gem is interesting because of its exceptional pleochroism. Rotated in different directions a tanzanite will exhibit multiple changes of color. Tanzanite has a low tolerance to ultrasonic cleaning, and should not be cleaned using this method.
Eighty prong set round brilliant cut diamonds approximate total weight of 80 Stones = 1.38ct. Graded in the setting.
Clarity VS-1 to SI-1
Color G - I
Total Weight of Colored Stones 6.97ct.
Total Weight of Diamonds 1.38ct.
Total Weight of Ring 10.72 gm